EP 3278951 B1 20190612 - GEAR PUMP EXTRUDING MACHINE
Title (en)
GEAR PUMP EXTRUDING MACHINE
Title (de)
ZAHNRADPUMPENEXTRUDER
Title (fr)
EXTRUDEUSE AVEC POMPE À ENGRENAGES
Publication
Application
Priority
- JP 2015076127 A 20150402
- JP 2016059710 W 20160325
Abstract (en)
[origin: EP3278951A1] A gear pump extruding machine for extruding a rubber material has a screw feeder 10, a gear pump 20 provided on an outlet side of the screw feeder 10, and a die 30 disposed on an outlet side of the gear pump 20. The gear pump extruding machine includes protrusive members p movable forward and rearward to protrude into a fluid communication channel S that keeps the screw feeder 10 and the gear pump 20 in fluid communication with each other, to thereby change the volume V of the fluid communication channel S. An actuator 45 is provided for moving the protrusive members p to protrude into the fluid communication channel S, and is controlled by a controller 50. The controller 50 controls the actuator 45 to move the protrusive members p forward and rearward to thereby change the volume V of the fluid communication channel S in order to set the pressure in the fluid communication channel S to a predetermined pressure depending on the rate at which the rubber material is extruded. When the volume V of the fluid communication channel S is changed, the rate at which the rubber material is extruded is adjusted to prevent the rubber material from being warmed excessively at all times.
IPC 8 full level
B29C 48/37 (2019.01); B29C 48/92 (2019.01); B29C 48/08 (2019.01)
CPC (source: EP US)
B29B 7/42 (2013.01 - EP); B29B 7/582 (2013.01 - EP); B29B 7/728 (2013.01 - EP US); B29B 7/7495 (2013.01 - EP US); B29C 48/252 (2019.01 - EP US); B29C 48/2552 (2019.01 - EP US); B29C 48/267 (2019.01 - EP US); B29C 48/37 (2019.01 - EP US); B29C 48/387 (2019.01 - EP US); B29C 48/92 (2019.01 - EP US); B29C 48/08 (2019.01 - US); B29C 2948/92019 (2019.01 - EP US); B29C 2948/9238 (2019.01 - EP US); B29C 2948/92514 (2019.01 - EP US); B29C 2948/92571 (2019.01 - EP US); B29C 2948/92657 (2019.01 - EP US); B29C 2948/92876 (2019.01 - EP US); B29K 2021/00 (2013.01 - US); B29K 2021/006 (2013.01 - EP US); B29K 2105/246 (2013.01 - US); B29L 2007/007 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3278951 A1 20180207; EP 3278951 A4 20180314; EP 3278951 B1 20190612; CN 107428062 A 20171201; CN 107428062 B 20190823; JP 2016196105 A 20161124; US 2018050479 A1 20180222; WO 2016158789 A1 20161006
DOCDB simple family (application)
EP 16772670 A 20160325; CN 201680019631 A 20160325; JP 2015076127 A 20150402; JP 2016059710 W 20160325; US 201615557517 A 20160325